CVE-2026-21623 CRITICAL

CVE-2026-21623: Extension - stackideas.com - Persistent XSS in EasyDiscuss component 1.0.0-5.0.15 for Joomla

Vendor Stackideas.com
Product EasyDiscuss extension for Joomla
Weakness CWE-79 · XSS
Published January 16, 2026
Last update January 16, 2026
View on NVD All CVEs

CVSS base score

9.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction —
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

What the vulnerability does

Description

Lack of input filterung leads to a persistent XSS vulnerability in the forum post handling of the Easy Discuss component for Joomla.

Key dates

Disclosure timeline

January 16, 2026 CVE published
January 16, 2026 Record updated